AviationWeather vs US Weather
Same instrument, two spec sheets — measured, not claimed.
AviationWeather vs US Weather: common questions
Which is more reliable, AviationWeather or US Weather?
On our scheduled checks, US Weather leads on measured uptime — AviationWeather at 93.1% versus US Weather at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, AviationWeather or US Weather?
US Weather has the lower median latency in our checks — AviationWeather responds in 450 ms versus US Weather at 223 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do AviationWeather and US Weather need an API key?
Neither needs a paid key — AviationWeather is callable with no signup, and US Weather is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call AviationWeather and US Weather from the browser?
Only US Weather is browser-friendly — it returns CORS headers over HTTPS. AviationWeather needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are AviationWeather and US Weather free for commercial use?
AviationWeather allows commercial use on its free tier, and US Weather allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.